11/17/2009

Conduction System - Normal Heart vs. AVSD (One aspect of it)

Images from Kirklin/Barratt-Boyes Cardiac Surgery 3rd edition (2003)

AVSD (p 813)Normal Heart (p 15)

Conduction system in VSDs:
Figure below shows the AV node and His bundle relationship to membranous VSD and inlet-muscular VSD. Note: Inlet-muscular VSD is different from inlet-VSD in AVSD. The latter is shown in the first figure above.
(From Anderson RH, Wilcox BR. J Cardiac Surg. 1992;7:17-34)